| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * ni_labpc ISA DMA support. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _NI_LABPC_ISADMA_H |
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| 7 | #define _NI_LABPC_ISADMA_H |
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| 8 | |
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| 9 | #if IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA) |
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| 10 | |
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| 11 | void labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan); |
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| 12 | void labpc_free_dma_chan(struct comedi_device *dev); |
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| 13 | void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s); |
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| 14 | void labpc_drain_dma(struct comedi_device *dev); |
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| 15 | void labpc_handle_dma_status(struct comedi_device *dev); |
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| 16 | |
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| 17 | #else |
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| 18 | |
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| 19 | static inline void labpc_init_dma_chan(struct comedi_device *dev, |
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| 20 | unsigned int dma_chan) |
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| 21 | { |
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| 22 | } |
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| 23 | |
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| 24 | static inline void labpc_free_dma_chan(struct comedi_device *dev) |
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| 25 | { |
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| 26 | } |
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| 27 | |
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| 28 | static inline void labpc_setup_dma(struct comedi_device *dev, |
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| 29 | struct comedi_subdevice *s) |
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| 30 | { |
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| 31 | } |
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| 32 | |
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| 33 | static inline void labpc_drain_dma(struct comedi_device *dev) |
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| 34 | { |
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| 35 | } |
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| 36 | |
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| 37 | static inline void labpc_handle_dma_status(struct comedi_device *dev) |
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| 38 | { |
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| 39 | } |
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| 40 | |
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| 41 | #endif |
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| 42 | |
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| 43 | #endif /* _NI_LABPC_ISADMA_H */ |
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| 44 | |
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